| DRIVE SURFACE SIZE | 0.500 INCHES NOMINAL SINGLE END |
| DRIVE END OUTSIDE DIAMETER | 1.197 INCHES MAXIMUM |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY SPECIAL FEATURE |
| FEATURES PROVIDED | MANUAL TOOL |
| OVERALL LENGTH | 3.000 INCHES MINIMUM |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 2 CLASS AND B STYLE |
| SPECIAL FEATURES | 7/8 IN. MIN DIA OF BOLT CLEARANCE HOLE |
| SPECIAL MARKINGS | 7/8 IN. |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| SURFACE TREATMENT | OXIDE AND CHROMIUM AND NICKEL OVERALL |
| WRENCHING END OPENING DEPTH | 0.500 INCHES MINIMUM |
| WRENCHING END OUTSIDE DIAMETER | 1.197 INCHES MAXIMUM |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| WRENCHING SURFACE SIZE | 0.875 INCHES NOMINAL SINGLE END |